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Finding the Fourth Proportional to 433,437.30, 650,143.80 and 196,779.60

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Solution

The fourth proportional to 433,437.30, 650,143.80 and 196,779.60 is: 295,163.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,437.30 : 650,143.80 = 196,779.60 : x
  2. Step 2: Convert to fraction form
    433,437.30/650,143.80 = 196,779.60/x
  3. Step 3: Cross multiply
    433,437.30x = 650,143.80 × 196,779.60
  4. Step 4: Simplify right side
    433,437.30x = 127,935,036,906.48
  5. Step 5: Solve for x
    x = 127,935,036,906.48/433,437.30
  6. Step 6: Final answer
    x = 295,163.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.